Diccionario ingles.comDiccionario ingles.com
Synonyms, antonyms, pronunciation

  Home 		English Dictionary      examples: 'day', 'get rid of', 'New York Bay'




Nictitating membrane   Listen
Nictitating membrane

noun
1.
A protective fold of skin in the eyes of reptiles and birds and some mammals.  Synonym: third eyelid.





Click any word on the page to get its definition
WordNet 3.0 © 2010 Princeton University
Text size:  A A


Advanced search
     Find words:
Starting with
Ending with
Containing
Matching a pattern  

Synonyms
Antonyms
Quotes
Words linked to  

only single words


Share |




"Nictitating membrane" Quotes from Famous Books



... The nictitating membrane, or third eyelid, with its accessory muscles and other structures, is especially well developed in birds, and is of much functional importance to them, as it can be rapidly drawn across the whole eye-ball. ...
— The Descent of Man and Selection in Relation to Sex • Charles Darwin
 Read full book for free!
... connection with these experiments are of general interest. The frog, when it first sees a moving object, usually draws the nictitating membrane over the eye two or three times as if to clear the surface for clearer vision. Frequently this action is the only evidence available that the animal has noticed an object. This movement of the eye-lids I have noticed in other amphibians and in reptiles under similar ...
— Harvard Psychological Studies, Volume 1 • Various
 Read full book for free!


Copyright © 2025 Diccionario ingles.com